<!DOCTYPE html>
<html lang="zh-CN">
  <head>
    <meta charset="utf-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
    <meta name="viewport" content="width=device-width, initial-scale=1" />
    <!-- 上述3个meta标签*必须*放在最前面，任何其他内容都*必须*跟随其后！ -->
    <title>Bootstrap 101 Template</title>

    <!-- Bootstrap -->
    <link href="./lib/bootstrap/css/bootstrap.css" rel="stylesheet" />

    <!-- HTML5 shim 和 Respond.js 是为了让 IE8 支持 HTML5 元素和媒体查询（media queries）功能 -->
    <!-- 警告：通过 file:// 协议（就是直接将 html 页面拖拽到浏览器中）访问页面时 Respond.js 不起作用 -->
    <!--[if lt IE 9]>
      <script src="https://cdn.jsdelivr.net/npm/html5shiv@3.7.3/dist/html5shiv.min.js"></script>
      <script src="https://cdn.jsdelivr.net/npm/respond.js@1.4.2/dest/respond.min.js"></script>
    <![endif]-->
  </head>
  <body>
    <div class="container">
      <form>
        <input type="file" />
      </form>
      <div class="row">
        <div class="col-xs-6 col-sm-1 col-md-9" style="background-color: red">asasdf</div>
        <div class="col-xs-6 col-sm-1 col-md-9" style="background-color: red">asasdf</div>
        <div class="col-xs-6 col-sm-1 col-md-9" style="background-color: red">asasdf</div>
        <div class="col-xs-6 col-sm-1 col-md-9" style="background-color: red">asasdf</div>
        <div class="col-xs-6 col-sm-1 col-md-9" style="background-color: red">asasdf</div>
      </div>

      <button class="btn btn-default">提交</button>

      <aa class="btn btn-default">提交</aa>
      <div class="btn btn-default">提交</div>

      <form>
        <div class="form-group">
          <label for="aaa">Email address</label>
          <input type="email" class="form-control" id="aaa" placeholder="Email" />
        </div>

        <div class="form-group">
          <label for="bbb">Password</label>
          <input type="password" class="form-control" id="bbb" placeholder="Password" />
        </div>

        <div class="form-group">
          <label for="nnn">File input</label>
          <input type="file" id="nnn" />
          <p class="help-block">Example block-level help text here.</p>
        </div>

        <div class="checkbox">
          <label> <input type="checkbox" /> Check me out </label>
        </div>

        <button type="submit" class="btn btn-default">Submit</button>
      </form>
      <button data-toggle="modal" data-target="#mmmabc">显示</button>
      <div class="modal fade" id="mmmabc">
        <div class="modal-dialog">
          <div class="modal-content">
            <form>
              <div class="modal-header">
                <button type="button" class="close" data-dismiss="modal">
                  <span>&times;</span>
                </button>

                <h4 class="modal-title">登录</h4>
              </div>
              <div class="modal-body">
                <div class="form-group">
                  <label for="aaa">用户名</label>
                  <input type="email" class="form-control" id="aaa" placeholder="Email" />
                </div>

                <div class="form-group">
                  <label for="bbb">密码</label>
                  <input type="password" class="form-control" id="bbb" placeholder="Password" />
                </div>

                <div class="checkbox">
                  <label> <input type="checkbox"/>记住 </label>
                </div>
              </div>
              <div class="modal-footer">
                <button type="submit" class="btn btn-default">登录</button>
              </div>
            </form>
          </div>
        </div>
      </div>
    </div>

    <div>
      <div></div>
      <div></div>
      <div></div>
    </div>

    <!-- jQuery (Bootstrap 的所有 JavaScript 插件都依赖 jQuery，所以必须放在前边) -->
    <script src="./lib/jquery.min.js"></script>
    <!-- 加载 Bootstrap 的所有 JavaScript 插件。你也可以根据需要只加载单个插件。 -->
    <script src="./lib/bootstrap/js/bootstrap.js"></script>
  </body>
</html>
